Add load_binary_dbg and support native simulator debug

Author: joii2020

contract/Makefile

@@ -45,7 +45,7 @@ build:
 	fi
 
 build-simulator:
-	cd {{project-name}}-dbg && cargo build $(MODE_ARGS) && cp target/$(MODE)/*_dbg.* $(TOP)/$(BUILD_DIR)
+	cd {{project-name}}-dbg && cargo build && cp target/debug/*_dbg.* $(TOP)/$(BUILD_DIR)
 
 # test, check, clippy and fmt here are provided for completeness,
 # there is nothing wrong invoking cargo directly instead of make.

workspace/tests/src/lib.rs

@@ -88,6 +88,17 @@ impl Loader {
         }
         result.unwrap().into()
     }
+
+    pub fn load_binary_dbg(
+        &self,
+        context: &mut ckb_testtool::context::Context,
+        name: &str,
+    ) -> Bytes {
+        let mut path = self.0.clone();
+        path.push(name);
+
+        context.load_binary(path)
+    }
 }
 
 // This helper method runs Context::verify_tx, but in case error happens,